The baby, whose mom is June’s 18-year-old daughter Anna, was born on July 26 weighing 6 lbs., 2 oz. June – herself a teenage mom who was just 15 when she had Anna – has been helping to care for Kaitlyn while Anna prepares to finish her senior year of high school in the family’s hometown of McIntyre, Ga.

“Sometimes my mama gives me pointers,” says Anna, who declines to name the baby’s father and says he is not in the picture. “Sometimes I just learn on my own.”

Of course, the baby also has a very young aunt to keep her entertained: Alana “Honey Boo Boo,” Thompson, who turned 7 Tuesday. (She shares the birthday with big sis Anna.)

Says Alana: “Baby Kaitlyn’s so cute.”

For much more on Honey Boo Boo and her no-holds-barred family, pick up this week’s issue of PEOPLE, on newsstands Friday